$BTC is becoming the new hedge. ALTS are down disproportionally. The immediate support for $BTC is 58k, which was tested last night. Below that 55k followed by 50k are the strong level. I personally feel like if at all BTC is to go lower it will be flash crash followed by quick recovery. And then the next leg could go up.
But for ALTS it will take long time to restore the levels back or it will wait for BTC to peak before it goes to piggyback BTC moves.